Topdisplay GMC Sierra / Chevrolet Silverado Radio Upgrade Installation Guide，with Wireless CarPlay & Android Auto

Step-by-Step Installation Guide  |  Fits 2019 / 2020 / 2021 / 2022 / 2023

I swapped the factory screen in my GMC Sierra for a Topdisplay touch-screen stereo, and honestly the whole job is mostly trim removal — no cutting, no splicing, everything plugs straight into the factory harness. The new unit packs an 8-Core CPU touch screen with Wireless CarPlay & Android Auto, and it keeps all your OEM controls. Here's the short version of how it went, step by step.

Step 1 — Remove the Interior Trim

Use a plastic trim tool to pop the trim panels around the dash, the center console and the kick panel. They're held by clips — work around the edges and they release cleanly.

Step 2 — Drop the Glove Box

Remove a few screws under the glove box and pull it out. It clears the way to the radio area and gives you room to reach the harness comfortably.

Step 3 — Unclip the Trim and Unplug the Factory Screen

Work the trim ring off around the factory screen, then unplug the connectors — the ones with the red clip pull straight out, no force needed.

Step 4 — Take Out the Old Unit, Get the Topdisplay Ready

Slide the factory unit out and set the new Topdisplay head unit in place — it's a direct-fit assembly with the 8-Core CPU touch screen already mounted in its own frame, ready to go.

Step 5 — Check the New Panel and Physical Controls

Before reinstalling, run a finger over the panel — the physical knobs and buttons are all there and respond just like stock, so you keep your OEM controls with the new screen.

Step 6 — Move the Air Vents and Modules to the New Frame

The new frame needs the parts that stayed with your dash — move the air vents and the small modules over and clip them in. They snap back using the OEM clips, so nothing looks out of place.

Step 7 — Plug into the OEM Port and Confirm Every Harness

Connect the unit to the OEM system port, then double-check every harness is fully seated before it goes back into the dash. This one step saves you from chasing issues later.

Step 8 — Power On and Test

Turn the ignition on and the Topdisplay boots up. Set the resolution if asked, then pick a source — Wireless CarPlay & Android Auto, USB or AUX — and run through the touch screen. That's it, you're done.

Installation Summary

• Time: about 45 minutes–1 hour, take it slow with the clips.
• Difficulty: easy to moderate — trim tools and a screwdriver, no wiring at all.
• Best for: Sierra / Silverado owners who want a bigger touch screen with Wireless CarPlay & Android Auto but don't want to lose factory controls.
• The upgrade experience: the 8-Core CPU keeps everything snappy, boot is quick, touch response is smooth, CarPlay & Android Auto connect wirelessly on their own, and all your OEM controls still work.

Questions Owners Ask

Will it damage my truck?

No. Nothing gets cut or spliced — everything plugs into the factory harness with plug-and-play connectors, and all the trim clips back exactly like stock.

Do I need professional tools?

No. Just a plastic trim tool set and a screwdriver (a small socket helps with the glove box screws).

Is the install hard?

Not really. It's mostly trim removal and clip-in parts. Be patient with the clips, seat every harness properly, and it's a friendly DIY job for a weekend.

Do I keep my original functions?

Yes. The Topdisplay unit keeps OEM controls by design — steering wheel buttons, knobs and the factory systems all stay working with the new screen.

That's the whole swap — 8 simple steps, no cutting, no wires to chase, and you walk away with a modern touch screen that still feels like your truck.

(The content is for reference only.)